//
// Created by Joey on 2019/12/14.
//
#include<iostream>
using namespace std;

int main() {
    cout << "aa\ta" << endl;
    cout << "aaa\ta" << endl;
    cout << "aaaa\ta" << endl;
    cout << "aaaaa\ta" << endl;
    cout << "aaaaaa\ta" << endl;
    cout << "aaaaaaa\ta" << endl;
    cout << "aaaaaaaa\ta" << endl;
    cout << "aaaaaaaaaaaaaaa\ta" << endl;
    cout << "aaaaaaaaaaaaaaaa\ta" << endl;
    cout << "aaaaaaaaaaaaaaaaa\ta" << endl;

}
